How much electricity does a solar water heater save?

A 100-litre ETC system replacing a 2 kW electric geyser saves approximately 1,500–2,000 units per year, which is ₹9,750–₹13,000 annually at ₹6.5/unit (Odisha residential). Larger commercial systems save proportionally more.

What is the difference between ETC and FPC collectors?

ETC (evacuated tube collectors) perform better in diffuse/cloudy light, handle colder winters, and are more efficient for domestic use. FPC (flat plate collectors) are more durable in hail-prone areas and better suited for high-temperature commercial processes. We recommend ETC for most Odisha homes.

What happens on cloudy days or in the rainy season?

All our solar water heaters include an electrical backup element (1–2 kW) that activates automatically when solar heating is insufficient. You never run out of hot water. The backup uses significantly less electricity than a standalone geyser because the water is already partially preheated.

Do solar water heaters need regular maintenance?

Minimal. The main maintenance task is descaling the tank annually in hard-water areas and replacing the anode rod every 3–5 years. Our AMC package covers annual inspection and descaling.

SOLAR WATER HEATERS

Hot water from sunlight. No electricity cost.

ETC and FPC solar collectors for homes, hotels, hospitals, and hostels. Replaces electric geysers and cuts your electricity bill by 20–30%.

₹10,000+

Typical annual electricity saving (100-litre system)

3–4 yrs

Typical payback period

15 yrs

System design life

What we offer

ETC Domestic (100–500 L)

Evacuated tube collectors for homes and flats. Suitable for 2–8 person households. BIS IS 12933 approved.

FPC Domestic (100–300 L)

Flat plate collectors — durable, low-profile, ideal for terraces with structural weight limits.

Commercial ETC (500 L–50,000 L)

Hotels, hospitals, hostels, canteens, and dairies. Fully engineered systems with insulated storage tanks.

Industrial process heat

Medium-temperature process heat for food processing, dyeing, and cleaning — reduces LPG or electric heater use.

Specifications

Parameter	ETC	FPC
Collector type	Evacuated glass tubes	Copper plate + glass
Best for	Most Odisha homes	Hail-prone / constrained roofs
Cloudy day performance	Better	Good
Capacity range	100 L – 50,000 L	100 L – 5,000 L
Max temperature	60–80°C	55–70°C
Standards	IS 12933	IS 12933
Backup element	Yes (1–2 kW electric)	Yes (1–2 kW electric)
Design life	15 years	20 years

FREQUENTLY ASKED

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Questions we hear every day

ଆମ ଗ୍ରାହକ ପ୍ରତ୍ୟେକ ଦିନ ପଚାରନ୍ତି

: A 100-litre ETC system replacing a 2 kW electric geyser saves approximately 1,500–2,000 units per year, which is ₹9,750–₹13,000 annually at ₹6.5/unit (Odisha residential). Larger commercial systems save proportionally more.
: ETC (evacuated tube collectors) perform better in diffuse/cloudy light, handle colder winters, and are more efficient for domestic use. FPC (flat plate collectors) are more durable in hail-prone areas and better suited for high-temperature commercial processes. We recommend ETC for most Odisha homes.
: All our solar water heaters include an electrical backup element (1–2 kW) that activates automatically when solar heating is insufficient. You never run out of hot water. The backup uses significantly less electricity than a standalone geyser because the water is already partially preheated.
: Minimal. The main maintenance task is descaling the tank annually in hard-water areas and replacing the anode rod every 3–5 years. Our AMC package covers annual inspection and descaling.